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Model DT335-0700, 2/3/4-Wire RTD Input Transmitter
USB Programmable, DIN Rail Mount, DC-Powered
Dual/Single Transmitter or Signal Splitter w/
2/3/4-Wire RTD or Resistance Inputs and
Sourcing Current or Voltage Outputs
USER'S MANUAL
ACROMAG INCORPORATED
Tel: (248) 295-0880
30765 South Wixom Road
email: sales@acromag.com
Wixom, MI 48393-2417 U.S.A.
Copyright 2018, Acromag, Inc., Printed in the USA.
8501135D
Data and specifications are subject to change without notice.
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Summary of Contents for Acromag DT335-0700
- Page 1 Sourcing Current or Voltage Outputs USER’S MANUAL ACROMAG INCORPORATED Tel: (248) 295-0880 30765 South Wixom Road email: sales@acromag.com Wixom, MI 48393-2417 U.S.A. Copyright 2018, Acromag, Inc., Printed in the USA. 8501135D Data and specifications are subject to change without notice.
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Page 2: Table Of Contents
USB A-B Cable ........................29 USB A-mini B Cable ......................30 USB OTG Cable ......................... 30 DIN Bus Connector Kit ......................30 End Stops........................... 30 SPECIFICATIONS ....................31 Acromag, Inc. Tel: 248-295-0880 - 2 - - 2 - https://www.acromag.com http://www.acromag.com... - Page 3 This is very important where property loss or human life is involved. It is important that you perform satisfactory overall system design and it is agreed between you and Acromag, that this is your responsibility.
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Page 4: Getting Started
Dual RTD/Resistance Input Transmitter w/USB GETTING STARTED DESCRIPTION DT335-0700 channels are modeled after ANSI/ISA Type IV transmitters. Input Symbols on equipment: channels interface with RTD sensors or resistance inputs and drive isolated DC outputs of voltage or current. This dual channel device is unique in that it may operate as a dual channel transmitter, a single channel transmitter, or channel 1 signal splitter. -
Page 5: Mechanical Dimensions
DIN rail clip and use it as a lever to force the DIN rail spring clip down while pulling the bottom of the module outward until it disengages from the rail. Then simply lift it from the rail. Acromag, Inc. Tel: 248-295-0880 - 5 - - 5 - https://www.acromag.com... -
Page 6: Electrical Connections
As a rule, output wires are normally separated from each other and from input wiring for safety and low noise pickup. Acromag, Inc. Tel: 248-295-0880 - 6 - - 6 - https://www.acromag.com... -
Page 7: Sensor Input Connections
IR drop from the sensor measurement by the A/D. A 3-wire input connection accomplishes the same thing, but only if the third-wire matches the input ± wires in diameter, length, and material (and therefore resistance). Acromag, Inc. Tel: 248-295-0880 - 7 - - 7 - https://www.acromag.com... - Page 8 Model DT335-0700 Dual RTD/Resistance Input Transmitter w/USB Acromag, Inc. Tel: 248-295-0880 - 8 - - 8 - https://www.acromag.com http://www.acromag.com...
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Page 9: Output Connections
For sensitive applications with high-speed acquisition at the load, high frequency noise may be reduced significantly by placing a 0.1uF capacitor directly across the load, and as close to the load as possible. Acromag, Inc. Tel: 248-295-0880 - 9 - - 9 - https://www.acromag.com... -
Page 10: Power Connections
This transmitter can be optionally powered (or redundantly powered) via the DIN rail bus when coupled to an optional DIN rail bus connector (Acromag IMPORTANT – External Fuse: If this Model 1005-063) with a bus terminal block (Acromag 1005-220 or 1005-221). This... -
Page 11: Optional Bus Power Connections
Important – End Stops: If this module uses optional power (or redundant power) via its DIN rail bus for hazardous location installations (Class I, Division 2 or ATEX/IECEx Zone 2) it should use two end stops (like Acromag 1027-222) to secure the terminal block and module (not shown). -
Page 12: Earth Ground Connections
(A PC commonly earth grounds its USB port contacting both the USB signal and shield ground which are held in common to the input circuit ground of this transmitter). Acromag, Inc. Tel: 248-295-0880 - 12 - - 12 - https://www.acromag.com... -
Page 13: Usb Connections
Windows-based PC connected to the unit via USB (Windows 7 or later required), or via a USB-OTG connection to an Android smartphone or tablet using the Acromag Agility mobile app. Refer to the drawing below to connect your PC or laptop to the transmitter to reconfigure or calibrate it using this software. -
Page 14: Configuration Software
Dual RTD/Resistance Input Transmitter w/USB CONFIGURATION SOFTWARE Quick Overview – Android This transmitter can be setup & calibrated via the Acromag Agility™ Config Tool. This software APP can be downloaded free of charge from play.google.com. To connect to this transmitter, a USB OTG (On-The-Go) cable (5028-565) and USB A to Mini-B cable (4001-113) are required. -
Page 15: Quick Overview - Windows
For detailed configuration and calibration procedures, see by clicking [Send I/O Config] and follow the on- the Operation Step-By-Step section of the Technical screen prompts. Reference on page 18 of this manual. Acromag, Inc. Tel: 248-295-0880 - 15 - - 15 - https://www.acromag.com http://www.acromag.com... - Page 16 You can click the “Restore Factory” buttons if you ever you pointed to. misconfigure or improperly calibrate a transmitter such that its operation appears erratic, or for sanitation purposes when decommissioning a module. Acromag, Inc. Tel: 248-295-0880 - 16 - - 16 - https://www.acromag.com http://www.acromag.com...
- Page 17 Help message pertaining to the calibration, potentially helpful in discerning issues. item you pointed to. Acromag, Inc. Tel: 248-295-0880 - 17 - - 17 - https://www.acromag.com...
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Page 18: Technical Reference
Now that you have made your connections and applied power, you can execute the DT335Config.exe software to begin configuration (software is compatible with v7 or later versions of the Windows operating system). Acromag, Inc. Tel: 248-295-0880 - 18 - - 18 - https://www.acromag.com... -
Page 19: Configuration
(DT300 models do not draw power from USB). After executing the Acromag Configuration software for the DT335, the screen shown at left will appear, if you have not... - Page 20 1 bit. Decreasing range resolution can magnify error, especially noticeable for very small input ranges which degrade the input signal-to-noise ratio and the resolution of the analog-to-digital input conversion. Acromag, Inc. Tel: 248-295-0880 - 20 - - 20 - https://www.acromag.com http://www.acromag.com...
- Page 21 Rescale the output similarly and you can even swap input levels to configure a reverse-acting output if desired. Some under/over-range is built into every nominal range and these limits vary by range. Acromag, Inc. Tel: 248-295-0880 - 21 - - 21 - https://www.acromag.com...
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Page 22: Calibration (Optional)
(calibration does not use the scaled range maximum, but the full-scale of the nominal input range selected). Once you input full-scale precisely, click the [OK] button and follow the on-screen prompt to calibrate full-scale. Acromag, Inc. Tel: 248-295-0880 - 22 - - 22 - https://www.acromag.com... - Page 23 “Transfer Error”, and “Timeout Error” during calibration. If you encounter a Transfer or Timeout Error, your calibration did not take effect and you may have to repeat the calibration process. Acromag, Inc. Tel: 248-295-0880 - 23 - - 23 - https://www.acromag.com...
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Page 24: Diagnostics
In the screen at left, note the input values are indicated in range units and “No error” is displayed in the Communication status field. Acromag, Inc. Tel: 248-295-0880 - 24 - - 24 - https://www.acromag.com http://www.acromag.com... -
Page 25: Rtd Resistance Versus Temperature
(boiling point of water) minus the sensor resistance at 0°C (freezing point of water), by the sensor resistance at 0°C, then by 100°C (α = [R100°C -R0°C] / R0°C/ 100°C). For Pt100Ω α=0.00385, this is 38.5Ω/100.0Ω/100°C, or 0.00385Ω/Ω/°C. Acromag, Inc. Tel: 248-295-0880 - 25 - - 25 - https://www.acromag.com... -
Page 26: Block Diagram
Refer to the block diagram above to - Input 1 circuit ground is common gain a better understanding of transmitter operation. to USB ground. Acromag, Inc. Tel: 248-295-0880 - 26 - - 26 - https://www.acromag.com... -
Page 27: Troubleshooting
USB connection to your tablet/phone to get this prompt. USB has not enumerated the Use the reset button on the Acromag USB device. isolator to trigger renumeration of the unit, or simply unplug and re-plug the USB cable to the transmitter. - Page 28 An input should be calibrated at the desired non-functioning transmitter be input reading when changing the filter setting. For best results, set the input returned to Acromag for repair or input filter setting. filter as desired before calibrating the input. replacement. Acromag has Cannot Measure Input Temperature or Resistance…...
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Page 29: Service & Repair Assistance
Acromag for repair or replacement. Acromag has automated test equipment that thoroughly checks and calibrates the performance of each transmitter and can restore firmware. Please refer to Acromag’s Service Policy and Warranty Bulletins or contact Acromag for complete details on how to obtain repair or replacement. ACCESSORIES Software Interface Package/Configuration Kit –... -
Page 30: Usb A-Mini B Cable
USB OTG Cable 5028-565 This is a 6 inch, USB On-The-Go cable for connection between the USB A-mini B Cable and a mobile phone or tablet. It is required to use the Acromag Agility™ Config Tool App. Note that the Acromag Agility ™ Config Tool is available free of charge, online at the Google Play store. -
Page 31: Specifications
Input Configuration: Four-wire (this has negligible lead-wire effect), three-wire with lead-wire compensation, and two-wire without lead-wire compensation. Input Linearization: Preset for input RTD and linearized to temperature or ohms (resistor). Acromag, Inc. Tel: 248-295-0880 - 31 - - 31 - https://www.acromag.com... - Page 32 47Hz and 61Hz. Input Bandwidth: The frequency at which the DT335 output is attenuated 3dB is 16Hz with no input filter. See also Normal Mode Noise Rejection and Output Response Time. Acromag, Inc. Tel: 248-295-0880 - 32 - - 32 - https://www.acromag.com...
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Page 33: Outputs (Each)
Instruments (DAC8760IPWPR) and its nominal range resolution is indicated in Table 3 below. The effective I/O resolution of a channel will be the lowest resolution of the input A/D or output D/A relative to the selected and scaled I/O range. Acromag, Inc. Tel: 248-295-0880 - 33 - - 33 - https://www.acromag.com... -
Page 34: Usb Interface
Cable Length/Connection Distance: 5.0meters maximum. Driver: No special drivers required. Uses the built-in USB Human Interface Device (HID) drivers of the Windows Operating System (Windows XP or later versions only). Acromag, Inc. Tel: 248-295-0880 - 34 - - 34 - https://www.acromag.com... -
Page 35: Power
Program Connector: 5-pin, Mini USB B-type socket, Hirose UX60SC-MB-5S8(80). DIN-Rail Mounting: Unit is normally mounted to 35x15mm, T-type DIN rails. Refer to the DIN Rail Mounting & Removal section for more details. Acromag, Inc. Tel: 248-295-0880 - 35 - - 35 - https://www.acromag.com... -
Page 36: Environmental
UL 20 ATEX 2416X IECEx UL 20.0088X X = Special Conditions 1) The equipment shall only be used in an area of not more than pollution degree 2, as defined in EN/IEC 60664‐1. Acromag, Inc. Tel: 248-295-0880 - 36 - - 36 - https://www.acromag.com... -
Page 37: Reliability Prediction
Initial Release. 27-JAN-2020 BC/ARP Added MTBF Figures. 15-SEP-2020 CAP/ARP Added cULus, ATEX, IECEx, and FCC approvals. Added Altitude: Up to 2000 meters (Environmental 28 JAN 2022 CAP/AMM Section) Acromag, Inc. Tel: 248-295-0880 - 37 - - 37 - https://www.acromag.com http://www.acromag.com...
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